Improvement in copying-pads



- UNITED STATES PATENT OEEIGE,

JOSEPH G. ROWLAND, OF QUINOY, ILLINOIS.

IMPROVEMENT IN COPYING-PADS.

Specification forming part of Letters Patent No. 149,158, dated March 31, 1874; application filed March 20,1874.

4consists in providing a sheet of blottingpaper,

felt, or other bibulous or absorbent material, with a backing of rubber, oiled silk, or other non-absorbent material, so that the leaf of a y book placed upon the absorbent surface will be dampened, while that opposite the nonabsorbent surface will remain dry.

The object of the invention is to afford a convenient device for copying letters.

Figures 1 and 2 are plan sectional views of a device embodying the elements of the invention when the sheets A and B are of the same size. Figs. 3 and -4 are similar views of alike device, wherein the non-absorbent sheet B is larger than' the absorbent sheet A. Figs. 5 and 6 are similar views of a like device, wherein the edges of the nonabsorbent sheet B overlap the edges of the absorbent sheet A. Figs. B-and are similar views of a like device, wherein the overlapping edges of the sheet B are connected by the cloth or textile material a.

In the accompanyiu g drawings, Arepresents a sheet of bibulous or absorbent material of proper size, to oneside of which is attached, in any suitable manner, the sheet B of nonabsorbentinaterial, and of similar size.

The invention may be embraced in various forms. Thus the sheet B may be made longer than the sheet A, and its edges lapped over the edges of the absorbent material, leaving a suitable space of bibulous surface exposed; or the construction last above specified may be employed, and the edges of the sheet B connected by cloth or other textile material a of such 'a character that water can permeate it, covering the surface of the sheet A exposed between the lapped edges of the sheet B. If the absorbent material is easily disintegrated, the last-specified form of construction may be found preferable. It is also obvious that by treating one surface of the absorbent sheet chemically or otherwise, so as to render it nonabsorbent, while the other side of the sheet retains its absorbent nature, will enable the purposes of the invention to be effected by the single sheet. A

The sheet A is properly dampened, and the device laid in the copying-book; the leaf or leaves upon which the copy is to be taken are then laid over the absorbent sheet, and the manuscript, written in copying-ink, is then placed upon the leaf, with the written surface toward the sheet A the bookis then closed, and pressure applied to it, thus accomplishing the copying, the water in the sheet A dampening the leaf, and thus assisting in the result, while the opposite leaf is pressed dry, being in contact with the non-absorbent sheet B.

lVhat I claim as my invention, and desire to secure by Letters Patent, is

A copying-pad one side of which is composed of absorbent and the other of nouabsorbent material.

In testilnony that I claim the foregoing improvements in dampening-pads, as above described, I have hereunto set my hand and seal.

JOSEPH G. ItOVLAND. LL. s.]

Vitnesses:

U. S. PENFIELD, GEO. S. JASPER. 

